Yes. Refiners of California gasoline may use computer-controlled in-line blending to produce RFG without obtaining an exemption under § 80.65(f)(4). However, RFG that does not meet the definition of "California gasoline" in § 80.81(a)(2) is subject to the independent analysis requirement, even if it is produced in California, and would require an exemption to allow computer-controlled in-line blending.(7/1/94)
This question and answer was posted at Consolidated List of Reformulated Gasoline and Anti-Dumping Questions and Answers: July 1, 1994 through November 10, 1997 (PDF)(333 pp, 18.17 MB, EPA420-R-03-009, July 2003, About PDF)